Height adjusting device



July 19, 1949. F. GRIMM HEIGHT ADJUSTING DEVICE Filed July 17, 1945 V .INVENTOR. fie def/0k Cir/mm- BY i ATTORNEYS.

Patented July 19, 1949 v 2,476,366

UNITED PATENT (DI-Fl CE 2,478,388 HEIGHT ABZIUS'D'ING BEVIGE Frederick firemen, Berwym Mil-i, 'assisnqr, by mesn'e as's'izmhents, to l evelor {torp'orat'io'n, 'a corporation or NewiYork Application in: in, 1945, seriai' No. 605,601 1 901m. (Gilt-# 139) 2 This invention relates to improvements n aeher ll) is'jcountersunk at l"5pto receive the counvices of an adjustable character ior LIQVBBDIQE! ersunk head or the screw 11 so "that the outer ticles and/or adjusting theheight thereoft surface or "the head of the screw lies ifluish with The primary object-of this 'invention-isltheprm the Ibottoihsuria'ce of the piece It! when the latvision of an extremely practieal simple end eco- 5 te'rjis' attached to a support 20, such as a table nomical device for :leveling articles of .iurniturei. 2E, The outer surfaceof the piece Ill tapers etc. 7 downwardlyconver' eht from the top surface I! A further object ofthis invention isitheiprovi and itis provided with an elongated slot 18 insion of an improved leveling device of the above wardly from the outer surface thereof for receivmentioned character which has an adjustment ins a p 22 in sli ng rel i n re h p looking feature which is self-operating. being iirovideu "for thepulp f adi t y A further object of this invention is the ;pro-- curing the split sleeve 1'2 uponthe'basepiece I ll. vision of an improved means :for -:100kifl'atW0 sleeve I2 has atap r d passa way screw threaded membersiinto a desired relative therethruadapted to receive th'epiece H1 in "inadjustment. ternttingrelation therewith. The outer diameter Other objects and advantages mike/invention Y ofithesleeveii's uniformthruouttheheight of-the will be apparent from the iollowing detbiledt'de sleeve except that itfisfscrew'threaded at 3| for scription. screw threading within the screw threadedpas- In the accompanying drawinswformlngrn meat sagewayffi to'fjtlietread it, as will be subsequentof this specification, and wherein similarlrefere go I? mentioned; ence characters designate corresponding parts I The sleeve I2 is vertically provided with slits thruout the several views, 33 tupwardlylfroin the bottom surface'thereof and Figure 1 is-a fragmentaryvertiearsectiomtaken thru the thickness thereof; the same and height thru the leg of some article,csuch amanmrticleiuf extending about one-half theheight of the sleeve. furniture having the improved levelintiafleme 35 They are providedlfor the purpose of ex anding secured therewith. the sleeve .atLits lower portion in order to lock Figure 2 is an exploded viewnhowlnu' thewaflthe tread thereon at a desired adjustment; the ous detailsofthe improvedzdevica expansion being taken care of by a movement ure 3 is a DIaH VieWOf tRe N fl MBVJR of the sleeve 12 upwardly upontthe taperedtbase without theattaching screw. ;80 piece").

ure l is a side elevation of thesi npmved The pin '22 is permanently secured upon the leveling devicesplit sleeve H on the internal surface thereof Figure 5 is a topplaniview f I- K Q projecting into the passageway 30 'atta location adjustment locking ed aaeimrt it! .abovetthetends ofthe slits-:33. Its projectioninto the device- 535 theislot B -of the-base piece In permits adjust- Figllre 6 s aipfi p w f fl fi fi m abilltyiof the sleeve I2 longitudinally upon the the improvedleveling.devioesiassoeiatttl wim tfie attaching post [0, 5 qwill be readily apparent, deskless thereof- I a .fromiElgure-lof thedrawing.

In t e acco pa yin wi ww i .The tread 43 is in the :nature of an inverted purpose of illustrationisshownoniymamfernfl ,mpmut,anddtlhasagscrewtthreaded passageway embodiment of the invention? the -ll3tH ,i-i-tth'erein for-adiustmentlupon the screwthreads generally d signate the -improved devi e whic mgcfathe sleevelZ. Thetbottomrofthe tread is may be used as a ie ne e (its Primary closed aha-uncured, t mayibeprovided with Purpose) or as helghtadjustmgcdevicei t a insrubberaorrmetal ihsertsAfl-gdepending upon the just the height or any desired article, .such as'vds usianflmatur andvpurposeb-f thedevice artlcle m a e w SIt Will, oi coursepbe apparentxthat-theitread The P t le e e di $5 base ll'i is 'detaehable from the 'sleeveili. However, the attachmg Place imam sleeve pin zt hclus themes-em ands'leevel z assembled. like plug, and screw ll forits connection-with zvsedrgfih rag v qevrn u h d the article to be height adjusted or leveled,- a .F. I 3 9? 61g a k I jiisting device, the tread i3 is ad usted upon the screw threaded split sleeve or hushln v and I or atreadtmember l3. sleeve 12 to the desired location and of course Theparts w, H d imavibe made-for m! 3, W t h d t i ffl i di Pi F" approved material desired. Preferably'sth'eyeare fi H Q ffifi e e st "Un w made of plastic or some synthetic resim aeltho I taprd c t for/the P 05 laterallyexthey can be constructed of metalmr anyfleslned panding the blower/slotted tportion of the sleeve material. into bindingeengagement with thescrew threads The base member ill-isoffrusto conical shape jof thetapered;sleeveandathus the screw threaded having "a passageway l4 therethru for receiving adjustment ofthesleeve dlandtread -13 is-sescrew 4|. The lower pm mmcoo-cured. Inorder-toinsureithisloekingiactionlthe 3 taper of the socket 30 may be slightly steeper than the taper of the post Ill.

The facility with which the device may be attached to a leg or support 20 is obvious. The

screw threaded member II secures the post in To readjust all that is necessary is to take the:

weight off of the device, pull down the tread and this will also pull the sleeve down relative to the post It). The adjustment is thus unlocked and the tread may be adjusted upon the sleeve.

It is apparent that the locking expedient is an improved feature, and with respect to this and other features various changes may be made in the shape, size and arrangement of parts without departing from the spirit of the invention or scope of the claims.

I claim:

1. In a leveling and/or height adjusting device the combinaton of a tapered attaching member, an externally screw threaded sleeve havin a tapered socket for receiving the attaching member, said sleeve being laterally slotted to in-' sure its expansion when the sleeve and attaching member are moved in interfitting relation, and an internally screw threaded tread screw threaded upon said sleeve and locked in adjustment thereon through expansion of the sleeve by said attaching member.

2. In a leveling device an externally tapered attaching piece, an externally screw threaded member having a tapered socket for slidably receiving the tapered attaching piece, means to secure the attaching piece and externally screw threaded member together to permit relative longitudinal adjustment between the same, said member at its lower end being slotted 'thru the thickness thereof, and an internally screw threaded tread cap adjustably threaded upon said member.

8. In a device of the class described the combination of a frusto-conical attaching post, means for attaching said post to the leg of an article to be adjusted or leveled, said post being tapered divergently from the top thereof downwardly, a split externally screw threaded sleeve having a tapered passageway conforming substantially to and receiving the attaching post, and an internally screw threaded tread member for adjustment upon said externally threaded split sleeve:

4. In a device of the class described the combination of a irusto-conical attaching post, means for attaching said post to the leg of an article to be adjusted or leveled, said post being tapered divergently from the top thereof downwardly, a split externally screw threaded sleeve having a tapered passageway conforming substantially to and receiving the attaching post, and an internally screw threaded tread member for adjustment upon said externally threaded split sleeve, said post having a longitudinal slot externally therein, and a pin. carried by said sleeve panding the first member upon said floor engaging-member to lock the threads of said members and hold said members in a desired levelin adjustment.

6. In a leveling device the combination of a threaded member which has a slot extending in intersecting relation transversely across said threads, means for attaching said member to an article tobe leveled, a floor engaging tread memher-threaded upon the threads of the first member, and means for radially expanding the first member upon said floor engaging tread member to lock the threads of said members together and hold said members in a desired leveling adjustment. I

7. In a leveling device the combination of a threaded synthetic resin member externally screw threaded and provided with a split through said threads whereby said member may be laterally expanded, means for attaching said member to an article to be leveled, a floor engaging tread member threaded upon the threads of said first mentioned member, and likewise formed of synthetic resin, and means for radially expanding the first member in releasable relation upon said floor engaging member to lock the threads of said members together and hold them in a desired leveling adjustment.

8. In a leveling device the combination of a base piece, means for attaching the base piece to a support orother object, an externally screw threaded radially expansible sleeve having a socket for receiving the base piece for axial movement therealong, the internal socket walls and the base piece externally thereof being so constructed and arranged as to radially expand the sleeve upon axial movement of it upon the base piece in one direction, and an internally screw threaded supporting member screw threaded upon said sleeve and adapted to be locked thereon upon radial expansion of the sleeve as aforesaid.

9. In a device for leveling articles the combination of a sleeve-like plug, attaching means arried by said plug to secure the plug to the article to be leveled, a split bushing annularly mounted upon the plug for longitudinal movement axially of the 'plug, means to prevent relative rotation of the bushing upon the plug, said bushing being externally screw threaded, an internally threaded tread cap adjustably mounted upon the threads ofthe bushing, and means upon said plug socketed within the split bushing for laterally expanding-the bushing into thread locked engagement' within said cap upon relative axial move ment of the plug and bushing.

I FREDERICK GRIMM.

" REFERENCES CITED The folldwing references are of record in the file of this patent:

UNITED STATES PATENTS Number 497,079 "France Mar. 5, 1937 

